Mechanical Operations Colloid mills achieve size reduction mainly by Cutting Impact Attrition Compression Cutting Impact Attrition Compression ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the follwoing mechanical conveyors does not come under the division 'scrapers'? Flight conveyor Bucket elevators Drag conveyor Ribbon conveyor Flight conveyor Bucket elevators Drag conveyor Ribbon conveyor ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations __________ is defined as the geometric mean of the relative rejections and the relative recoveries of two minerals. Separation efficiency Selectivity index None of these Concentration ratio Separation efficiency Selectivity index None of these Concentration ratio ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Theoretical capacity of crushing rolls in tons/hr is given by (where, V = peripherial velocity, m/sec. W = width of rolls, m Dr = distance between rolls ρ = density of material to be crushed, kg/m³ here, V =πN.D where, N = speed of the rolls in rotation per second (rps) D = diameter of rolls, m) 3.6 V.W.Dr/ρ 3.6 V.W.Dr.ρ 3.6 V.W. ρ 3.6 W.Dr.ρ 3.6 V.W.Dr/ρ 3.6 V.W.Dr.ρ 3.6 V.W. ρ 3.6 W.Dr.ρ ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The work index in Bond's law for crushing of solids has the following dimensions KWh.m1/2/ton KWh/ton KW/ton No units (dimensionless) KWh.m1/2/ton KWh/ton KW/ton No units (dimensionless) ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In a grinding operation, the limiting particle size is the size of the __________ particle in the sample. Neither A nor B Either A or B Largest Smallest Neither A nor B Either A or B Largest Smallest ANSWER DOWNLOAD EXAMIANS APP
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